{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-39666", "assignerOrgId": "f7d6281c-4801-44ce-ace2-493291dedb0f", "state": "PUBLISHED", "assignerShortName": "Checkmk", "dateReserved": "2025-04-16T07:07:38.257Z", "datePublished": "2026-04-07T12:09:07.609Z", "dateUpdated": "2026-04-07T13:18:19.609Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Checkmk", "vendor": "Checkmk GmbH", "versions": [{"status": "affected", "version": "2.2.0", "versionType": "semver"}, {"lessThan": "2.3.0p46", "status": "affected", "version": "2.3.0", "versionType": "semver"}, {"lessThan": "2.4.0p25", "status": "affected", "version": "2.4.0", "versionType": "semver"}, {"lessThan": "2.5.0b3", "status": "affected", "version": "2.5.0b1", "versionType": "semver"}]}], "descriptions": [{"lang": "en", "value": "Local privilege escalation in Checkmk 2.2.0 (EOL), Checkmk 2.3.0 before 2.3.0p46, Checkmk 2.4.0 before 2.4.0p25, and Checkmk 2.5.0 (beta) before 2.5.0b3 allows a site user to escalate their privileges to root, by manipulating files in the site context that are processed when the `omd` administrative command is run by root."}], "impacts": [{"capecId": "CAPEC-471", "descriptions": [{"lang": "en", "value": "CAPEC-471: Search Order Hijacking"}]}, {"capecId": "CAPEC-17", "descriptions": [{"lang": "en", "value": "CAPEC-17: Accessing, Modifying or Executing Executable Files"}]}], "metrics": [{"cvssV4_0": {"baseScore": 9.3, "baseSeverity": "CRITICAL", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H", "version": "4.0"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-426", "description": "CWE-426: Untrusted Search Path", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-829", "description": "CWE-829: Inclusion of Functionality from Untrusted Control Sphere", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "f7d6281c-4801-44ce-ace2-493291dedb0f", "shortName": "Checkmk", "dateUpdated": "2026-04-07T12:09:07.609Z"}, "references": [{"url": "https://checkmk.com/werk/18891", "tags": ["vendor-advisory"]}], "title": "omd: Local privilege escalation when executing omd commands as root", "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:checkmk:checkmk:2.2.0:*:*:*:*:*:*:*"}, {"vulnerable": true, "criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.3.0", "versionEndExcluding": "2.3.0p46"}, {"vulnerable": true, "criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.4.0", "versionEndExcluding": "2.4.0p25"}, {"vulnerable": true, "criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.5.0b1", "versionEndExcluding": "2.5.0b3"}]}]}], "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-07T13:18:12.687066Z", "id": "CVE-2025-39666", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-07T13:18:19.609Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-39666", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-04-07T13:18:12.687066Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-07T13:18:16.178Z"}}], "cna": {"title": "omd: Local privilege escalation when executing omd commands as root", "impacts": [{"capecId": "CAPEC-471", "descriptions": [{"lang": "en", "value": "CAPEC-471: Search Order Hijacking"}]}, {"capecId": "CAPEC-17", "descriptions": [{"lang": "en", "value": "CAPEC-17: Accessing, Modifying or Executing Executable Files"}]}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 9.3, "baseSeverity": "CRITICAL", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"}}], "affected": [{"vendor": "Checkmk GmbH", "product": "Checkmk", "versions": [{"status": "affected", "version": "2.2.0", "versionType": "semver"}, {"status": "affected", "version": "2.3.0", "lessThan": "2.3.0p46", "versionType": "semver"}, {"status": "affected", "version": "2.4.0", "lessThan": "2.4.0p25", "versionType": "semver"}, {"status": "affected", "version": "2.5.0b1", "lessThan": "2.5.0b3", "versionType": "semver"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://checkmk.com/werk/18891", "tags": ["vendor-advisory"]}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "Local privilege escalation in Checkmk 2.2.0 (EOL), Checkmk 2.3.0 before 2.3.0p46, Checkmk 2.4.0 before 2.4.0p25, and Checkmk 2.5.0 (beta) before 2.5.0b3 allows a site user to escalate their privileges to root, by manipulating files in the site context that are processed when the `omd` administrative command is run by root."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-426", "description": "CWE-426: Untrusted Search Path"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-829", "description": "CWE-829: Inclusion of Functionality from Untrusted Control Sphere"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:checkmk:checkmk:2.2.0:*:*:*:*:*:*:*", "vulnerable": true}, {"criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "2.3.0p46", "versionStartIncluding": "2.3.0"}, {"criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "2.4.0p25", "versionStartIncluding": "2.4.0"}, {"criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "2.5.0b3", "versionStartIncluding": "2.5.0b1"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "f7d6281c-4801-44ce-ace2-493291dedb0f", "shortName": "Checkmk", "dateUpdated": "2026-04-07T12:09:07.609Z"}}}, "cveMetadata": {"cveId": "CVE-2025-39666", "state": "PUBLISHED", "dateUpdated": "2026-04-07T13:18:19.609Z", "dateReserved": "2025-04-16T07:07:38.257Z", "assignerOrgId": "f7d6281c-4801-44ce-ace2-493291dedb0f", "datePublished": "2026-04-07T12:09:07.609Z", "assignerShortName": "Checkmk"}, "dataVersion": "5.2"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Local privilege escalation in Checkmk 2.2.0 (EOL), Checkmk 2.3.0 before 2.3.0p46, Checkmk 2.4.0 before 2.4.0p25, and Checkmk 2.5.0 (beta) before 2.5.0b3 allows a site user to escalate their privileges to root, by manipulating files in the site context that are processed when the `omd` administrative command is run by root."}], "id": "CVE-2025-39666", "lastModified": "2026-04-07T13:20:11.643", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.3, "baseSeverity": "CRITICAL", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security@checkmk.com", "type": "Secondary"}]}, "published": "2026-04-07T13:16:44.847", "references": [{"source": "security@checkmk.com", "url": "https://checkmk.com/werk/18891"}], "sourceIdentifier": "security@checkmk.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-426"}, {"lang": "en", "value": "CWE-829"}], "source": "security@checkmk.com", "type": "Secondary"}]}

{}

{}